/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.polardbx.optimizer.core.rel.dml.util;

public interface RexHandler<C extends RexHandlerCall> {
    /**
     * Match RexNode type and check whether RexNode should be replaced with RexCallParam
     */
    boolean matches(C call);

    /**
     * Replace RexNode with RexCallParam
     *
     * @return STOP means break the chain after this handler
     */
    RexHandlerChain.ChainState handle(C call);
}
